(1E,4E)-1,5-bis(4-chlorophenyl)penta-1,4-dien-3-one CAS 18278-29-0

Purity 97%+In StockPharmaceutical Standards
CAS No.18278-29-0
Molecular FormulaC17H12Cl2O
Molecular Weight303.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(1E,4E)-1,5-bis(4-chlorophenyl)penta-1,4-dien-3-one CAS 18278-29-0 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (1E,4E)-1,5-bis(4-chlorophenyl)penta-1,4-dien-3-one.

CATO supplies (1E,4E)-1,5-bis(4-chlorophenyl)penta-1,4-dien-3-one (CAS 18278-29-0), a certified reference material (molecular formula C17H12Cl2O, MW 303.18 g/mol) for analytical method development and quality control.

(1E,4E)-1,5-bis(4-chlorophenyl)penta-1,4-dien-3-one (C17H12Cl2O) contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), (1E,4E)-1,5-bis(4-chlorophenyl)penta-1,4-dien-3-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC17H12Cl2O
Molecular Weight303.18 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Halogen ContentCl-containing

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